Table 3.
Epibiotic bacterial strains isolated from diatom cells in natural waters and their closest cultivated relative identified by Blastn.
| Diatom host | Strain (n) | Phylum/class | Order | Family | Species | 16S rRNA similarity (%) |
|---|---|---|---|---|---|---|
| Chaetoceros spp. | KC58 (2) | Alphaproteobacteria | Rhizobiales | Phyllobacteriaceae | Hoeflea phototrophica | 97.9 |
| KC43 (1) | Gammaproteobacteria | Alteromonadales | Alteromonadaceae | Glaciecola punicea | 96 | |
| KC55B (4) | Pseudoalteromonadaceae | Pseudoalteromonas undina/marina | 99 | |||
| KC57 (1) | Pseudoalteromonas carrageenovora | 100 | ||||
| KC61 (1) | Vibrionales | Vibrionaceae | Photobacterium aquimaris | 99.9 | ||
| KC46A (1) | Flavobacteriia | Flavobacteriales | Flavobacteriaceae | Tenacibaculum gallaicum | 97.7 | |
| KC79A (2) | Actinobacteria | Actinomycetales | Micrococcaceae | Arthrobacter subterraneus | 99.8 | |
| Thalassiosira spp. | KC76 (1) | Alphaproteobacteria | Kiloniellales | Kiloniellaceae | Kiloniella laminariae | 96.3 |
| KC56 (1) | Rhizobiales | Hyphomicrobiaceae | Hyphomicrobium nitrativorans | 95.3 | ||
| KC41B (1) | Phyllobacteriaceae | Nitratireductor indicus | 95.2 | |||
| KC41A (1) | Nitratireductor pacificus | 95.2 | ||||
| KC45 (1) | Rhodobacterales | Rhodobacteraceae | Jannaschia sp. | 98 | ||
| KC59 (1) | Litoreibacter meonggei | 97.7 | ||||
| KC77A (2) | Loktanella maricola | 99.6 | ||||
| KC68 (1) | Loktanella vestfoldensis | 96 | ||||
| KC75 (1) | Nereida ignava | 97.3 | ||||
| KC63A (3) | Octadecabacter antarcticus | 98.1 | ||||
| KC47 (1) | Roseobacter litoralis | 98.8 | ||||
| KC52A (2) | Shimia marina | 98.2 | ||||
| KC42A (2) | Sphingomonadales | Erythrobacteraceae | Altererythrobacter luteolus | 97 | ||
| KC74 (1) | Croceicoccus marinus | 97.3 | ||||
| KC49 (1) | Erythrobacter aquimaris | 99.6 | ||||
| KC67 (1) | Sphingomonadaceae | Sphingopyxis flavimaris | 98.8 | |||
| KC60 (1) | Cytophagia | Cytophagales | Flammeovirgaceae | Roseivirga ehrenbergii | 93.2 | |
| KC65A (2) | Flavobacteriia | Flavobacteriales | Flavobacteriaceae | Croceitalea eckloniae | 97.3 | |
| KC50A (2) | Dokdonia genica | 99.7 | ||||
| KC62 (1) | Lacinutrix sp. | 97.3 | ||||
| KC44 (1) | Lutimonas vermicola | 100 | ||||
| KC51B (2) | Maribacter aquivivus | 97.7 | ||||
| KC51A (1) | Maribacter forsetii | 96 | ||||
| KC81 (1) | Maribacter ulvicola | 99.3 | ||||
| KC73A (2) | Olleya namhaensis | 97.3 | ||||
| KC46B (2) | Tenacibaculum gallaicum | 97.7 | ||||
| KC48 (1) | Gammaproteobacteria | Alteromonadales | Alteromonadaceae | Aestuariibacter litoralis | 97.8 | |
| KC78 (1) | Alteromonas tagae | 99 | ||||
| KC72 (1) | Pseudohaliea rubra | 98 | ||||
| KC53A (5) | Pseudoalteromonadaceae | Pseudoalteromonas undina/marina | 99.9 | |||
| KC66 (1) | Shewanellaceae | Shewanella japonica | 99.3 | |||
| KC70 (1) | Colwelliaceae | Thalassomonas agariperforans | 96.9 | |||
| KC64 (1) | Chromatiales | Granulosicoccaceae | Granulosicoccus coccoides | 96.9 | ||
| KC80 (1) | Vibrionales | Vibrionaceae | Vibrio breoganii | 100 | ||
| KC54 (1) | Vibrio splendidus | 100 | ||||
| KC71 (1) | Unclassified | Chromatocurvus halotolerans | 97.3 | |||
| Gammaproteobacteria | ||||||
| KC69 (1) | Sphingobacteriia | Sphingobacteriales | Saprospiraceae | Portibacter lacus | 91.5 | |
| KC79C (1) | Actinobacteria | Actinomycetales | Micrococcaceae | Arthrobacter subterraneus | 99.8 |
aNumber of individual diatom cell carrying the corresponding bacterial isolate; bbased on partial sequences >663 bp.